Home  Back
Last update: 20 March 2004

IC number:8253
IC function:Timer

Component documentation
IC numberManufacturerDocumentation
8253IntelNot available
8253AMDNot available
µPD8253NECNot available

Component versions
IC numberPackageSpeedCBM part numberCBM part description
P8253-5, µPD8253C-528-pin DIP5 MHz380202-01IC, 8253-5 Timer 5MHz
µPD8253C-228-pin DIP

Positions
DevicePositionsPackageSpeed
A1060 main boardU24DIP5 MHz
PC-10 CPU boardU71DIP5 MHz
PC-10 combined boardU16DIP

Pinout
PinTypeName
1InputCS_
2InputWR_
3InputRD_
4..11I/OD7..D0
12..13I/OCAS0..CAS1
14PowerGND
15I/OCAS2
16I/OSP_/EN_
17OutputINT
18..25InputIR0..IR7
26InputINTA_
27InputA0
28PowerVCC

Copyright © 2004 Ronald van Dijk - All rights reserved